Closed loop prefix management and controller for whiteboxes

A system comprising:

• a network device;
• a route reflector coupled to the network device;
• a software defined network controller coupled to the route reflector and the network device;
• and
• a prefix usage analyzer in the software defined network controller.

A tangible, non-transitory, computer readable medium having computer-executable instructions stored thereon which, when executed by a computer, cause the computer to perform a method comprising:

• measuring a usage attribute for each prefix in a set of prefixes used in traffic through a network device;
• identifying a subset of prefixes having a predetermined usage attribute;
• and
• sending instructions to the network device to store the subset of prefixes in a table in the network device.